#5B9FF4#5B9FF4

#5B9FF4 is a light, vivid cyan. Relative luminance 0.336; OKLCH L 69.5% C 0.144 H 255.0°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#5B9FF4
RGB	rgb(91, 159, 244)
HSL	hsl(213, 87%, 66%)
HSV	hsv(213, 63%, 96%)
CMYK	cmyk(62.7%, 34.8%, 0%, 4.3%)
CIE-LAB	lab(64.60, 4.12, -48.94)
CIE-LCH	lch(64.60, 49.11, 274.81°)
OKLab	oklab(69.55% -0.0373 -0.1387)
OKLCH	oklch(69.55% 0.144 255)
XYZ	xyz(33.0358, 33.5489, 90.3050)
Luminance	0.3355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9FF4 #F4B05B

analogous

#5BECF4 #5B9FF4 #635BF4

triadic

#5B9FF4 #F45B9F #9FF45B

tetradic

#5B9FF4 #F45BEC #F4B05B #5BF463

square

#5B9FF4 #F45BEC #F4B05B #5BF463

split-complementary

#5B9FF4 #F4635B #ECF45B

monochromatic

#0D60C7 #227DF0 #5B9FF4 #94C1F8 #CEE2FC

Accessibility & contrast

On white

2.72

#5B9FF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.71

#5B9FF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9FF4

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9FF4	#FFFFFF	#000000	##000000
##5B9FF4	1.00	2.72	7.71	7.71
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.71	21.00	1.00	1.00
##000000	7.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7AA5F8

Deuteranopia (green-blind)

#6596F2

Tritanopia (blue-blind)

#00B3BE

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #5b9ff4;
/* rgb */ color: rgb(91, 159, 244);
/* oklch */ color: oklch(69.5% 0.144 255.0);

Tailwind

colors: {
  custom: {
    50: '#96bbf8',
    500: '#5b9ff4',
    950: '#000000',
  },
}

SCSS

$custom: #5b9ff4;
$custom-light: #96bbf8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9ff4",
  "rgb": {
    "r": 91,
    "g": 159,
    "b": 244
  },
  "hsl": {
    "h": 213.333,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.69549,
    "c": 0.14365,
    "h": 255
  },
  "luminance": 0.33552
}

Semantic roles & 50–950 ramp

primary

#5B9FF4

secondary

#EFD8BC

accent

#7F02E4

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #5B9FF4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →